<template>
  <div class="song-list">
    <ul>
      <li @click="selectItem(song,index,$event)" v-for="(song,index) in songs" class="item">
        <div class="rank" v-show="rank">
          <span :class="getRankCls(index)" v-text="getRankText(index)"></span>
        </div>
        <div class="content">
          <h2 class="name">{{ song.name }}</h2>
          <p class="desc">{{ getDesc(song) }}</p>
        </div>
      </li>
    </ul>
  </div>
</template>

<script type="text/ecmascript-6">
  export default {
    props: {
      songs: {
        type: Array,
        default: []
      },
      rank: {
        type: Boolean,
        default: false
      }
    },
    methods: {
      selectItem(item, index, event) {
        if (!event._constructed) {
          return
        }
        this.$emit('select', item, index)
      },
      getDesc(song) {
        return `${song.singer}.${song.album}`
      },
      getRankCls(index) {
        if (index <= 2) {
          return `icon icon${index}`
        } else {
          return 'text'
        }
      },
      getRankText(index) {
        if (index > 2) {
          return index + 1
        }
      }
    }
  }
</script>

<style rel="stylesheet/scss" lang="scss" scoped="">
  @import "~common/scss/const";
  @import "~common/scss/mixin";

  .song-list {
    .item {
      display: flex;
      align-items: center;
      box-sizing: border-box;
      height: 64px;
      font-size: $font-size-medium;
      .rank{
        flex: 0 0 25px;
        width: 25px;
        margin-right: 30px;
        text-align: center;
        .icon{
          display: inline-block;
          width: 25px;
          height: 24px;
          background-size: 25px 24px;
          &.icon0{
            @include bg-image(first)
          }
          &.icon1{
            @include bg-image(second)
          }
          &.icon2{
            @include bg-image(third)
          }
        }
        .text {
          color: $color-theme;
          font-size: $font-size-large;
        }
      }
      .content {
        flex: 1;
        line-height: 20px;
        overflow: hidden;
        .name {
          @include no-wrap();
          color: $color-text;
        }
        .desc {
          @include no-wrap();
          margin-top: 4px;
          color: $color-text-d;
        }
      }
    }
  }
</style>
